US 11,696,716 B2
Non-contact electrode basket catheters with irrigation
Troy T. Tegg, Elk River, MN (US); and Richard E. Stehr, Tucson, AZ (US)
Assigned to St. Jude Medical, Atrial Fibrillation Division, Inc., St. Paul, MN (US)
Filed by St. Jude Medical, Atrial Fibrillation Division, Inc., St. Paul, MN (US)
Filed on May 16, 2016, as Appl. No. 15/155,277.
Application 15/155,277 is a continuation of application No. 12/345,606, filed on Dec. 29, 2008, granted, now 9,339,331.
Prior Publication US 2016/0331254 A1, Nov. 17, 2016
Int. Cl. A61B 18/14 (2006.01); A61B 5/00 (2006.01); A61B 5/283 (2021.01); A61B 18/00 (2006.01); A61B 90/00 (2016.01); A61B 17/00 (2006.01)
CPC A61B 5/283 (2021.01) [A61B 5/6858 (2013.01); A61B 18/1492 (2013.01); A61B 2017/00867 (2013.01); A61B 2018/00214 (2013.01); A61B 2018/00267 (2013.01); A61B 2018/00351 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00642 (2013.01); A61B 2018/00839 (2013.01); A61B 2090/065 (2016.02); A61B 2218/002 (2013.01); C08L 2201/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A catheter, comprising:
an outer tubing that forms an outer surface of the catheter, wherein the outer tubing comprises an outer cover and an inner shaft disposed within the outer cover, wherein the inner shaft comprises a plurality of inner shaft channels that extend along a length of the inner shaft; and
a plurality of splines configured to deploy from an undeployed configuration to an expanded configuration, wherein a proximal end of each of the plurality of splines is connected to a distal end of the outer tubing and is disposed within a respective one of the plurality of inner shaft channels to prevent relative movement between the proximal end of each of the plurality of splines and the distal end of the outer tubing, wherein each of the plurality of splines comprises a flexible circuit that extends along a length of the spline, electrodes that are distributed along the spline, and an outer layer that covers the electrodes to prevent direct contact between the electrodes and myocardial tissue within a cardiac muscle during at least one of a therapy and diagnostic procedure, wherein the outer layer is configured to structurally stiffen the spline,
wherein the catheter is configured to be inserted into and advanced through a lumen of a separate introducer sheath.
 
2. The catheter of claim 1, wherein the electrodes are configured for use in conducting one or more of: anatomy mapping, electrophysiological mapping, temperature measuring, cardiac pacing, or myocardial tissue ablation.